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<head>
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    <title>
        2022-12-6
    </title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .box1{
            width:100px;
            height:100px;
            background-color: greenyellow;
            float:left; 
        
            /* box-shadow:0px 0px 50px rgb(0,0,0,.3); */
            /* outline: 10px red solid;*/
            /* padding:10px black solid;
            border:10px red solid; */
            /*设置盒子大小的计算方式*/    
        }
        .box2{
            background-color: yellow;
            float: left;
        }
        /* .box2{
            width:400px;
            height:200px;
            background-color: orange;
            float:left;

        }
        .box3{
            width:200px;
            height:200px;
            background-color: yellow;
            float:left;

        } */
        /* .box1:hover{
            outline: 10px red solid;
        } */
    </style>
</head>
<body>
    <!-- <div class="box1"></div>   
    <div class="box3"></div>
    <div class="box2"></div> -->
    <!-- <div class="box1"></div>
    <div class="box2">hello</div>
    <p>
        有些人会一直刻在记忆里的，即使忘记了他的声音，忘记了他的笑容，忘记了他的脸，
        但是每当想起他时的那种感受，是永远都不会改变的。
    </p> -->
    <!-- <span>hello</span> -->
    
</body>
</html>